Car-door.



W. P. MURPHY.

CAR DOOR.

APPLICATION FlLED AUG-7,

Patented July 2, 1918.

i 1 same warren r. MURPHY, oronrcneo, rumors.

CAR-DOOR.

Specification of Letters Patent.

?, 1915. Serial No. 4%,360.

To all whom it may concern:

Be it known that l, VVALTER P. MURPHY, a citizen of the United States of America, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have lnvented certain new and useful Improvements in Car-Doors, of which thetfollowmg is a specification.

This application is a division of my application filed December 27, 1913, Serial No. 809,031.

The invention consists of a combined gusset plate and shoe for a car door.

The object of my invention is to provide a combined gusset plate and door shoe thereby reducing the cost of a door by eliminating the use of a number of rivets to each door, besides which the liability of the shoe being left off the door in its original manufacture, or of its being accidentally lost from the door which results in the door swinging outward at the bottom from the side of the car and side swiping a train. A shoe made integral with the gusset provides a much stronger construction.

Freight car doors are subjected to very rough usage and since the passage of the Safety appliance act the Government has been very rigid in penalizing railroads for loose and lost parts of a car, therefore, the reduction of the number of separate parts and rivets is a matter of some importance, and especially is this so when one, at the same time, materially strengthens the construction as in this invention.

As stated the loss of car. door shoes is eliminated by this invention, thereby insuring the door remaining snug against the door jamb, when it is closed, thus preventing the elements from entering the car through the joint between the door and door joint, which results in a saving to the railroad against loss from claims from shippers forgoods damaged by the elements.-

l[n the drawing:

Figure 1 is a front elevation of a car door, broken away, embodying my invention.

Fig. 2 is a vertical section through a car sill and door showing the bottom rail and keeper for the door and my combined gusset plate and shoe in elevation.

Fig. 3 is a perspective view of my improved gusset plate and shoe.

The reference numeral 1 indicates an all metal car door which constitutes the sub ject matter of my application above identified and it is not therefore, claimed in this case.

The gusset plate 2 is adapted to be riveted or otherwise secured at the corner of a car door primarily to strengthen the door structure. The gusset plate, according to my invention has a depending portion 3 which extends below the bottom line of the door structure which depending portion constitutes a door shoe adapted to engage the door guides '4, secured to the sills 5, and serves to hold the door snugly against the side of the car, with a weatherproof joint between the door and the side of a car, when the door is in its closed position.

lit will be noted from Figs. 2 and 3 that the lower portion of the gusset plate is bent rearwardly to form a shoulder, as at 6. whereby the door shoe 3 is set in a vertical plane to the rear of the gusset plate. There are several advantages resulting from this construction, among which may be mentioned the following:

The rear bend 6 serves as a support for the door when in closed position thereby materially relieving the rivets 7 from said weight thereby reducing the liability of said rivets becoming loose or tearing the metal; the rearward bend also constitutes a water shed from which moisture will drop clear of the guides 4.

What I claim is:

1. In a car door, a gusset plate having an integral flange depending below the lower edge of the door and ofi'set from the vertical plane of the gusset plate and constituting a door shoe odset from the vertical plane of the gusset plate.

2. A metal door composed of corrugated metal, a gusset plate secured at each lower corner of the door, an integral extension deending from said gusset plates below the ower edge of the door, said extension constituting a door shoe adapted to engage door guides on a car, so as to hold the door snugly against the car when the door is in closed position.

Patented July 2, 1mm. Original application filed December27, 1913, Serial No. 809,031. Divided and this application filed August 3. In a car door structure including door In testimony whereof I affix my signature guiidfisgf stlienglgthening platefs hof limited in presence of two Witnesses. wi t ort e ower corners o t e door pror jecting below the bottom of the door to con- WALTER MURPHX 5 stitute a door shoe and cooperating with the Witnesses:

door guides, whereby the door is free from J. E. SISSON, said guides when moved to open position. P. F. MCSHANE. 

